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US 10,649,132 B2Granted
Diffusion sheet, backlight module and display device
AssigneesBoe Technology Group Co., Ltd., Beijing Boe Special Display Technology Co., Ltd.
InventorXing Zhao
Life of this patent
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Abstract
A diffusion sheet, a backlight module and a double-sided display device are provided. A transflective layer is provided on one surface of a substrate layer. On one hand, a portion of the light incident from an opposite side of the substrate layer is transmitted to a first display panel via the diffusion sheet; on the other hand, another portion of the light is reflected back to the light guide plate and enters a second display panel on another side of the double-sided backlight module.
Claims17
A diffusion sheet, comprising:
- a substrate layer, comprising a first surface and a second surface disposed opposite to each other;
- and
- a transflective layer, disposed on the first surface;
- wherein the transflective layer transmits a portion of light incident from the second surface and reflects another portion of the light incident from the second surface,
- the transflective layer comprises reflective regions and transmissive regions, and the reflective regions and the transmissive regions being arranged alternately,
- an arc-shaped recessed structure is provided on a surface of each of the transmissive regions proximal to the substrate layer;
- and
- an arc-shaped recessed structure is provided on a surface of each of the transmissive regions distal to the substrate layer.
5 more elements
Dependencies are inferred from the claim text.